function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true
	}

function ValidateForm(){

     var name=document.form1.name
     if (name.value == "" )
      {
        alert ( "Please Enter your name" );
       return false
      }
    
	var emailID=document.form1.memail

	if ((emailID.value==null)||(emailID.value==""))
	{
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
    var strPhone=document.form1.mmob;
    if(strPhone.value.length!=0)
      {
        if((strPhone.value.length!=10)||(isNaN(strPhone.value)))
         {
           alert("please enter your 10 digit mobile number")
		   strPhone.focus();
           return false;
         }
           return true;
      }
var fname=document.form1.fname
if (fname.value== "" )
    {
        alert ( "Please Enter your friends name." );
       return false;
    }

	 emailID=document.form1.femail;
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your friends Email ID")
		emailID.focus()
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false;
	}
 strPhone=document.query.cnum;
    if(strPhone.value.length!=0)
      {
        if((strPhone.value.length!=10)||(isNaN(strPhone.value)))
         {
           alert("please enter your 10 digit mobile number")
		   strPhone.focus();
           return false;
         }
           return true;
      }



return true;
}

function ValidateQueryForm()
{
	var name = document.query.name;
    if (name.value == "" )
      {
        alert ( "Please Enter your name" );
       return false
      }
      var cname = document.query.cname;
    if (cname.value == "" )
      {
        alert ( "Please Enter company name" );
       return false
      }
    var emailID=document.query.email;

	if ((emailID.value==null)||(emailID.value==""))
	{
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
      strPhone=document.query.cnum;
     if(strPhone.value.length!=0)
      {
        if((strPhone.value.length!=10)||(isNaN(strPhone.value)))
         {
           alert("please enter your 10 digit mobile number")
		   strPhone.focus();
           return false;
         }
           return true;
      }
    var query = document.query.query;
    if (query.value == "" )
      {
        alert ( "Please Enter your query" );
       return false
      }
      
    
   
    return true;
}